Memory corruption in MediEvil

[ThisIsRex]

Describe the bug

In MediEvil, severe GPU/VRAM corruption occurs in PCSX-Redux on Linux.

• Intro graveyard scene: spider model is torn/broken (vertices and polygons are corrupted) -- even with textures completely disabled
• Level select map: completely purple screen + visible grid in VRAM Viewer
• After visiting the level select map, corruption spreads -- previously working levels (e.g. “Dan’s Crypt”) also become solid purple (sound and controls still work)
• Options from the "Options" section don't change the behavior

Expected behavior

All scenes (intro spider, level select map, and all levels) should render correctly without VRAM corruption or broken geometry.

Steps to reproduce the bug

1. Launch MediEvil
2. Wait until the title scene
3. Pass the "Dan's Crypt" level
4. Go to the map

Operating System

Nobara Linux

PCSX-Redux version

4cb8be2
build 249
changeset 4cb8be2

CPU model

32 × Intel® Core™ i9-14900HX

GPU model & Drivers

Mesa Intel(R) Graphics (RPL-S) 4.6 (Core Profile) Mesa 26.0.4, NVIDIA GeForce RTX4090 Laptop GPU/PCIe/SSE2 3.2.0 NVIDIA 595.58.03

BIOS version

OpenBIOS

Options

• Dynarec CPU
• 8MB
• OpenGL GPU
• Fastboot
• Debugger

Iso checks

No response

Logs

logs.txt

Additional information

No response